fix: bootpkg only as root

bootpkg/src/main.rs

@@ -15,6 +15,14 @@ mod args;
 mod prelude;
 
 fn main() {
+    #[cfg(not(debug_assertions))]
+    {
+        if unsafe { libc::getuid() } != 0 {
+            println!("bootpkg must be run as root.");
+            std::process::exit(1);
+        }
+    }
+
     let args = Args::from(env::args().collect::<Vec<String>>()[1..].to_owned());
     match args.command {
         Command::Strap => {